3rd Generation Specific (1993-2002) 1993-2002 Discussion including performance modifications and Technical Support Sections.
Sponsored by:

390 rear How good

Thread Tools
 
Search this Thread
 
Old 05-14-07, 02:21 PM
  #1  
Rotary Enthusiast

Thread Starter
 
rotory4life's Avatar
 
Join Date: Jul 2006
Location: RAINELLE WV
Posts: 831
Likes: 0
Received 0 Likes on 0 Posts
390 rear How good

My fd was auto, did a swap to manual. My mod are Power FC, 6 puck racing clutch carbon, short shifter. Right now i'm adding 1300 secondary and 1000 primary.precision intercooler and koyo rad...Stock twins. Now I have a 3.90 rear from the auto which i never swap because of the top end. which i like n feel. I'm going with a cusco lsd 2 way. Now my question is with the cusco lsd would my rear hold up or go with a t2 rear and go with a 4.10.rear.
Old 05-14-07, 02:28 PM
  #2  
Mr. Links

iTrader: (1)
 
Mahjik's Avatar
 
Join Date: Aug 2001
Location: Kansas City, MO
Posts: 27,595
Received 40 Likes on 26 Posts
Arrow

Originally Posted by rotory4life
would my rear hold up or go with a t2 rear and go with a 4.10.rear.
Some info: https://www.rx7club.com/3rd-generation-specific-1993-2002-16/how-much-can-stock-fd-differential-handle-630755/
Old 05-14-07, 03:05 PM
  #3  
Lives on the Forum

 
rynberg's Avatar
 
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes on 8 Posts
1. Your injectors are ludicrous size for stock twins, even for most singles.
2. Top end? The 4.1 gears top out at 200 mph. How much more do you need? 4.1 will significantly feel better at any speed.
Old 05-14-07, 05:38 PM
  #4  
Rotary Enthusiast

Thread Starter
 
rotory4life's Avatar
 
Join Date: Jul 2006
Location: RAINELLE WV
Posts: 831
Likes: 0
Received 0 Likes on 0 Posts
well the reason for the big injector. I'm aiming at a T70. True about what you said about the 4.1. Like my brother said where am i going to open the throttle that wide. 3.90 or 4.10 doesnt matter. to get a T2 alot cheaper. Guess I'm going with his saying. Thanks bro for your help
Old 05-14-07, 05:41 PM
  #5  
Lives on the Forum

 
rynberg's Avatar
 
Join Date: Dec 2001
Location: San Lorenzo, California
Posts: 14,716
Likes: 0
Received 8 Likes on 8 Posts
You would have a lot easier time just running 550cc or 850cc primaries and 1600cc secondaries.




All times are GMT -5. The time now is 06:53 PM.